Klarna lets you dynamically trigger promotional credit offers.

Your Klarna account manager can help you determine the criteria for custom offers and a standard naming convention that will be referred to when requesting such offers via our API.

When initiating a payment session in which you want to offer custom financing, you have to include one or multiple promotional codes in the custom_payment_method_id array in the create session request.

If you're using SmartPost as a shipping option, you must share the following details with Klarna when creating an order:

• The SmartPost address in the billing_address[ billing_address object when creating an order].
• The phone number to which the SmartPost SMS PIN is sent. We use this phone number for risk assessment.